I will be applying to a few schools that require a non-science LOR and many schools that don't. I will be able to get a non-science LOR but would rather only submit that letter to schools that require it as I have 3 sceince prof letter that will probably be better to submit to the other schools. Is this possible and if so how? BTW my undergrad does not do a committee letter, I think they just assemble a packet. In this case do I send my 3 science letters as a packet and then separately submit the non-science LOR to schools that need it?